May weather forecast
Marietta, NC

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Weather in May

May, the last month of the spring in Marietta, is a warm month, with an average temperature varying between 62.6°F (17°C) and 79.7°F (26.5°C).

Temperature

May's onset witnesses a minor shift in the average high-temperature, moving from an agreeable 72.1°F (22.3°C) in April to a warm 79.7°F (26.5°C). Marietta's average low-temperature for the month of May records at a refreshing 62.6°F (17°C).

Humidity

The months with the highest humidity are May, June, August and September, with an average relative humidity of 78%.

Rainfall

In Marietta, in May, it is raining for 17.6 days, with typically 3.7" (94mm) of accumulated precipitation. Throughout the year, there are 167.8 rainfall days, and 32.68" (830mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

In May, the average length of the day is 13h and 58min.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:01 pm. On the last day of May, sunrise is at 6:05 am and sunset at 8:23 pm EDT.

Sunshine

In May, the average sunshine in Marietta is 9.8h.

UV index

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 6 in May translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

What is the usual temperature for Marietta in May?

Marietta in May has an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 62.6°F (17°C).

What is the most humid month?

The months with the highest humidity are May, June, August and September, with an average relative humidity of 78%.

What is the average humidity in May?

In May, the average relative humidity is 78%.

How much does it rain in May?

In Marietta, North Carolina, in May, it is raining for 17.6 days, with typically 3.7" (94mm) of accumulated precipitation.

When it does not snow?

April through November are months without snowfall.

How many hours of daylight does Marietta have in May?

In Marietta, the average day length in May is 13h and 58min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:25 am and sunset at 8:01 pm. On the last day of the month, in Marietta, sunrise is at 6:05 am and sunset at 8:23 pm EDT.

How many hours of sunshine does Marietta have in May?

In Marietta, the average sunshine duration in May is 9.8h.

What is the UV index reading in May?

In Marietta, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Marietta, NC

Average temperature in May - Marietta, NC
  • Average high temperature in May: 79.7°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in May: 62.6°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).

Average pressure in May
Marietta, NC

Average pressure in May - Marietta, NC
  • Average pressure in May: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in May
Marietta, NC

Average wind speed in May - Marietta, NC
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in May
Marietta, NC

Average humidity in May - Marietta, NC
  • Average humidity in May: 78%

The months with the highest relative humidity are May, June, August and September (78%).
The month with the lowest relative humidity is January (73%).

Average rainfall in May
Marietta, NC

Average rainfall in May - Marietta, NC
  • Average rainfall in May: 3.7"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (1.5").

Average rainfall days in May
Marietta, NC

Average rainfall days in May - Marietta, NC
  • Average rainfall days in May: 17.6 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is October (8.5 days).

Average snowfall in May
Marietta, NC

Average snowfall in May - Marietta, NC
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Marietta, NC

Average snowfall days in May - Marietta, NC
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Marietta, NC

Average daylight in May / Average sunshine in May - Marietta, NC
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

Average sunshine days in May
Marietta, NC

Average sunshine days in May - Marietta, NC
  • Average sunshine days in May: 11.7 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (8.2 days).

Average UV index in May
Marietta, NC

Average UV index in May - Marietta, NC
  • Average UV index in May: 6

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in May
Marietta, NC

Average cloud cover in May - Marietta, NC
  • Average cloud cover in May: 36

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in May
Marietta, NC

Average visibility in May - Marietta, NC
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Marietta, North Carolina, USA

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